#============================================================= -*-Perl-*-
#
# Template::Plugin::Wrap
#
# DESCRIPTION
# Plugin for wrapping text via the Text::Wrap module.
#
# AUTHOR
# Andy Wardley <abw@wardley.org>
#
# COPYRIGHT
# Copyright (C) 1996-2022 Andy Wardley. All Rights Reserved.
#
# This module is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
#
#============================================================================
package Template::Plugin::Wrap;
use strict;
use warnings;
use base 'Template::Plugin';
use Text::Wrap;
our $VERSION = '3.100';
sub new {
my ($class, $context, $format) = @_;;
$context->define_filter('wrap', [ \&wrap_filter_factory => 1 ]);
return \&tt_wrap;
}
sub tt_wrap {
my $text = shift;
my $width = shift || 72;
my $itab = shift;
my $ntab = shift;
$itab = '' unless defined $itab;
$ntab = '' unless defined $ntab;
$Text::Wrap::columns = $width;
Text::Wrap::wrap($itab, $ntab, $text);
}
sub wrap_filter_factory {
my ($context, @args) = @_;
return sub {
my $text = shift;
tt_wrap($text, @args);
}
}
1;
__END__
=head1 NAME
Template::Plugin::Wrap - Plugin interface to Text::Wrap
=head1 SYNOPSIS
[% USE wrap %]
# call wrap subroutine
[% wrap(mytext, width, initial_tab, subsequent_tab) %]
# or use wrap FILTER
[% mytext FILTER wrap(width, initital_tab, subsequent_tab) %]
=head1 DESCRIPTION
This plugin provides an interface to the L<Text::Wrap> module which
provides simple paragraph formatting.
It defines a C<wrap> subroutine which can be called, passing the input
text and further optional parameters to specify the page width (default:
72), and tab characters for the first and subsequent lines (no defaults).
[% USE wrap %]
[% text = BLOCK %]
First, attach the transmutex multiplier to the cross-wired
quantum homogeniser.
[% END %]
[% wrap(text, 40, '* ', ' ') %]
Output:
* First, attach the transmutex
multiplier to the cross-wired quantum
homogeniser.
It also registers a C<wrap> filter which accepts the same three optional
arguments but takes the input text directly via the filter input.
Example 1:
[% FILTER bullet = wrap(40, '* ', ' ') -%]
First, attach the transmutex multiplier to the cross-wired quantum
homogeniser.
[%- END %]
Output:
* First, attach the transmutex
multiplier to the cross-wired quantum
homogeniser.
Example 2:
[% FILTER bullet -%]
Then remodulate the shield to match the harmonic frequency, taking
care to correct the phase difference.
[% END %]
Output:
* Then remodulate the shield to match
the harmonic frequency, taking
care to correct the phase difference.
=head1 AUTHOR
Andy Wardley E<lt>abw@wardley.orgE<gt> L<http://wardley.org/>
The L<Text::Wrap> module was written by David Muir Sharnoff
with help from Tim Pierce and many others.
=head1 COPYRIGHT
Copyright (C) 1996-2022 Andy Wardley. All Rights Reserved.
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
=head1 SEE ALSO
L<Template::Plugin>, L<Text::Wrap>
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